A school sells adult tickets and student tickets for a play. It collects $1,400 in total. Graph. Adult tickets sold. Student tickets sold. The graph shows the possible combinations of the number of adult tickets sold and the number of student tickets sold. What does the vertical intercept (0, 200) tell us in this situation? A: It tells us the decrease in the sale of adult tickets for each student ticket sold. B: It tells us the decrease in the sale of student tickets for each adult ticket sold. C: It tells us that if no adult tickets were sold, then 200 students tickets were sold. D: It tells us that if no students tickets were sold, then 200 adult tickets were sold.

the aswere is the one with all 8's and the second one is with the 10,8 and 6

step-by-step explanation:

step-by-step explanation: so we look at the formula un = a + (n-1)d

un is the amount of seats

n is the nth term aka row number

a is the original sequence/row number

d is the difference between each term

so in this a=22 d=6 and n can remain as n because we are simply formjng a rule

lets put these in the equation

un=22+(n-1)(6)

this is your answer to part a

however

lets double check that this is correct, we'll try putting it into the second term

un=a+(n-1)d

u2=22+(2-1)(6)

u2=22+6

u2=28

as the question said the second row has 28 seats so now we know the formula we made is correct.

as for part b

un=a+(n-1)

its asking us to find a row with 100 seats.

remember un was the amount of seata so all we do is substitute this in.

un=100 a=22 d=6

un=a+(n-1)d

100=22+(n-1)(6)

so now we simplify to find n which is the row number.

100-22=22+(n-1)(6)-22

78=(n-1)(6)

78/6=(n-1)(6)/6

13=n-1

13+1=n-1+1

14=n

so now we know that in the 14th row there is 100 seats.

hope this and that you understood! its my first time using the app or anyone out on here : p its also me to revise so a bunch! ask more questions if you dont understand ☺